Designation D 4947 – 05 Standard Test Method for Chlordane and Heptachlor Residues in Indoor Air1 This standard is issued under the fixed designation D 4947; the number immediately following the desig[.]
Designation: D 4947 – 05 Standard Test Method for Chlordane and Heptachlor Residues in Indoor Air1 This standard is issued under the fixed designation D 4947; the number immediately following the designation indicates the year of original adoption or, in the case of revision, the year of last revision A number in parentheses indicates the year of last reapproval A superscript epsilon (e) indicates an editorial change since the last revision or reapproval 2.2 EPA Methods: Compendium of Methods for the Determination to Toxic Organic Compounds in Ambient Air, EPA 600/R-96/ 010b 2.3 Other Documents: Indoor Sampling Guidelines for Termiticides Scope 1.1 This test method covers the sampling and analysis of indoor atmospheres for residues of chlordane and heptachlor 1.2 This test method is based upon the collection of chlordane and heptachlor from air onto polyurethane foam (PUF) and analysis by gas chromatography coupled with electron capture detection 1.3 This test method is applicable to concentrations of chlordane varying from 0.1 to 100 µg/m3 and heptachlor varying from 0.01 to 80.0 µg/m3 with sampling periods to collect at least 0.25 m3 of air Detection limits will depend upon the conditions of the gas chromatography (GC) and the length of the sampling period 1.4 This standard does not purport to address all of the safety concerns, if any, associated with its use It is the responsibility of the user of this standard to establish appropriate safety and health practices and determine the applicability of regulatory limitations prior to use Terminology 3.1 Definitions: 3.1.1 Refer to Terminology D 1356, Practice E 355, and Practice D 4861 for definitions of terms used in this test method 3.1.2 The term “chlordane” refers to a technical-grade mixture consisting mostly of chlorinated Diels-Alder addition products of cyclopentadiene and hexachlorocyclopentadiene The mixture consists of 50 or more compounds, 10 of which are major components (1).5 The isomers a-(or cis-) and g-(or trans-) chlordane, heptachlor, and trans-nonachlor are among these 3.1.2.1 The terms “chlordane” and “technical” chlordane are used interchangeably 3.1.3 Heptachlor is a single chemical compound, which may be used alone or in formulations with technical chlordane It is also a component of technical chlordane Referenced Documents 2.1 ASTM Standards: D 1356 Terminology Relating to Sampling and Analysis of Atmospheres D 3686 Practice for Sampling Atmospheres to Collect Organic Compound Vapors (Activated Charcoal Tube Adsorption Method) D 3687 Practice for Analysis of Organic Compound Vapors Collected by the Activated Charcoal Tube Adsorption Method D 4185 Practice for Measurement of Metals in Workplace Atmospheres by Atomic Absorption Spectrophotometry D 4861 Practice for Sampling and Selection of Analytical Techniques for Pesticides and Polychlorinated Biphenyls in Air E 355 Practice for Gas Chromatography Terms and Relationships Summary of Practice 4.1 A low-volume (1 to L/min) sampler is used to collect airborne chlordane and heptachlor on a sorbent cartridge containing PUF The method is taken from Refs (2) through (4) and Practice D 4861 4.2 Chlordane and heptachlor are extracted from the sorbent cartridge with % diethyl ether in hexane and analyzed on a gas chromatograph (GC) equipped with an electron capture detector (ECD) 4.3 Because of the possibility of interfering materials having similar retention times to chlordane and heptachlor peaks, column chromatography or the use of a second chromatographic column of a different type is necessary to obtain This practice is under the jurisdiction of ASTM Committee D22 on Sampling and Analysis of Atmospheres and is the direct responsibility of Subcommittee D22.05 on Indoor Air Current edition approved March 1, 2005 Published March 2005 Originally approved in 1989 Last previous edition approved in 2000 as D 4947 - 00 For referenced ASTM standards, visit the ASTM website, www.astm.org, or contact ASTM Customer Service at service@astm.org For Annual Book of ASTM Standards volume information, refer to the standard’s Document Summary page on the ASTM website Available from the U.S Department of Commerce, National Technical Information Service, Port Royal Road, Springfield, VA 22161 Available from Wood Protection Council, National Institute for Building Sciences, Washington, DC, 1987 The boldface numbers in parentheses refer to the list of references at the end of this standard Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959, United States D 4947 – 05 diameter poly(5% -diphenyl-95% dimethylsiloxane) fusedsilica capillary column,8 film thickness 1.5 µm, for confirmation 7.3.3 Microsyringes, 5-µL volume accurate identification and quantification Mass spectrometry may be required for unambiguous determination Significance and Use 5.1 This test method is intended to be used primarily for non-occupational exposure monitoring in domiciles, public access buildings and offices 5.2 Chlordane has been used widely as a general insecticide for crops (for example, cotton) and as a termiticide Heptachlor is a major component of technical chlordane and an insecticide in its own right Although their use in the United States was discontinued in 1988, residues of the chemicals may remain in indoor air for many years after application Sampling Procedures 8.1 Follow the applicable section of Practice D 4861 for clean-up and proper storage of the PUF sampling plugs 8.2 At least one assembled sampling cartridge from each batch should be analyzed as a laboratory blank prior to using The blank level should be